Design for Manufacturing (DFM)

BOM Control: Setting up your PCB Documentation for Success

BOM Control: Setting up your PCB Documentation for Success Years ago I ventured into the world of remote control helicopters. Not the ready-to-fly-out-of-the-box drones that they sell today, but a gas-engine, Bell-Hiller mix, remote-controlled helicopter. What the salesman didn’t tell me though was about all the other items that I would need to purchase in order to complete it. I was going to have to purchase the engine, muffler, radio components, servos, starter, battery, as well as much more. As you Read Article

Wet and Dry PCB Etching Solutions: Which Process is the Right Solution?

Wet and Dry PCB Etching Solutions: Which Process is the Right Solution? I have always been a very visually-oriented thinker. When I was much younger, I used to look up maps to video game levels online and put a sheet of tracing paper up against the screen to copy them down. The Zelda games specifically would always leave me with a notebook full of maps and, on the more challenging dungeons, color-coded warnings. If I sneezed once in my tracing process or the screen moved or I was called away mid-tracing, my map would Read Article

Properties of Semiconductors: Electrodeposition and PCB Devices

Properties of Semiconductors: Electrodeposition, Gas Sensors, and PCB Devices I started working with gas sensors 10 years ago—my team had several ideas on how to improve the performance of our devices by integrating semiconductor nanomaterials into our PCB-based sensors. We were familiar with various electron, barrier heights, valence electrons, conduction band and the semiconductor interface. We were all masters of electrodeposition and masters of gas sensors in our own right, and we had the idea to integrate the two Read Article

Bill of Materials Management Strategies: Automation is Your Friend

Bill of Materials Management Strategies: Automation is Your Friend When I was a boy I really enjoyed reading the “Alfred Hitchcock and the Three Investigators” mystery books. These books were a contemporary to “The Hardy Boys” mystery books and I filled a lot of my free time reading about “The Secret of Terror Castle”, “The Mystery of the Screaming Clock”, and many other frightful enigmas. A few years ago I ran across some of these books, and now I collect as many as I can find. Another avid fan I know said it Read Article

Multi-Board Versus Multilayer Designs

Step Up Your Game: Multi-Board Versus Multilayer Designs Sometimes, a circuit board gets too cramped and has too many layers for its good. Highly cramped assemblies and higher layer counts generally increase costs, and you can't always enlarge a board just to fit everything into your mechanical constraints. Things like enclosures, connector placements, attached mechanical or electrical components, and the like all limit what you can do inside the space you are given. What's the difference between a Read Article

Practice Makes Perfect: How to Test Electronic Components during PCB Design

Practice Makes Perfect: Testing and Verifying Electronic Component Assemblies during PCB Design When I was younger, well much younger, I had dreams of one day being a pro athlete. I wanted to be the guy who scored the winning touchdown, knocked in the winning run or hit the buzzer-beater. Although I never made to the professional level, I did have some success and I learned a lot. The most important thing was the results you achieved were strictly tied to your preparation. In other words, if I wanted to do well in the game I had to test Read Article

The Advantages and Disadvantages of Designing with Breadboards

The Advantages and Disadvantages of Designing with Breadboards Breadcrumbs, breadboards, and breadwinners. One of which has electronic components. Two of which will provide you with a delicious and nutritious meal enough to feed a family. The first, will provide you with the foundational playground to which your printed circuit board board design will spawn from. I will save you time, effort, and many awkward encounters by telling you that if you go around trying to stick jumper leads into breadwinners Read Article

PCB Manufacturing Ebook

PCB Manufacturing Ebook Printed circuit boards have a huge foothold in our lives. They are found in everything from our TVs and computers, to our washing machines and watches. As a PCB designer, you understand the blood, sweat, and tears that make every board and the devices they serve a reality. It's rare that any PCB project goes smoothly from start to finish. However, there are a number of steps you can take to increase the efficiency and reduce the number of hiccups Read Article

Remove the Chance of PCB Manufacturing Delays by Using a Final Deliverable Checklist

Remove the Chance of PCB Manufacturing Delays by Using a Final Deliverable Checklist Several years ago I had knee surgery. Something had happened to the membrane that provided protection in the joint, and my knee was making all kinds of noise that a healthy knee shouldn’t be making. Before going into the surgery the doctor said that I should take a marker and carefully notate which knee required the surgery. Considering the circumstances, I hope he wasn’t pulling my leg before cutting into it. Using a checklist is always a good Read Article

Putting Constraints to Work for You in Your Circuit Routing Software

Putting Constraints to Work for You in Your Circuit Routing Software When I was a kid, my parents had a 1955 Oldsmobile Super 88 Holiday. What a great car. As an eight year old though, the main thing that stood out to me was that it had a decorative rope that stretched horizontally across the back of the front seat. Sitting in the back with my brother one day, we informed our parents that with the fancy rope in place we no longer needed to use our seat belts. I saw my dad wink to my mom, and then at a very slow Read Article

Designing Your PDN to Work Within Your PCB Layout Guidelines

Designing Your PDN to Work Within Your PCB Layout Guidelines I enjoy watching the occasional episode of Star Trek here and there, and I get a kick out of noting the inconsistencies in their technology. In one episode they may be firing all of their energy weapons at the bad guys, moving at warp 3-billion to time travel and showing no regard as to where their power was coming from. In the next episode though, someone will plug in a space toaster to warm up their breakfast in the galley, and the whole ship Read Article

Optimizing Your BOM for Rapid Prototype Manufacturing

BOM Optimization for Rapid Prototype Manufacturing Your BOM can make your manufacturing speeds, especially if you want your prototyping to be done quick and smooth. Read Article

See Where You are Going with Your PCB Power Distribution Network Design

Electric Distribution Systems and PCBs: Power Distribution Network Design For those of you who have only experienced the brilliant high power of LED, Xenon, or Halogen headlights in today’s modern cars, you may not realize how fortunate you are. My first car was old enough that its headlights could have been candles. One year I received Halogen fog lights for my birthday, and the difference at night was amazing. Not only could I now see what was next to the car in the dark but the fog lights almost out-distanced the Read Article

Take the Fear out of PCB Form Factors with These Four Considerations

Take the Fear out of PCB Form Factors with These Four Considerations Throughout the early 2000’s, we were blessed with an array of new and exciting products, shows, music, and technology. Myspace was just coming into view as one of the top social networking sites of its time, Livestrong bracelets were the most fashionable accessories around, and who could forget the launch of the very first iPod. However cool and hip all these things were, there was one that clearly stood out among the rest: the NBC show Fear Read Article

How is Your Design Affected by PCB Edge Clearance?

How is Your Design Affected by PCB Edge Clearance? We are often tasked with fitting a plethora of things into a small window of space. Whether it be cramming loads of info into our heads moments before a final exam, doing all twenty sightseeing activities into an eight-hour “vacation day,” or strategically stacking our Thanksgiving plates full of deliciousness, we must be aware of the boundaries given, and how each unique item interacts with the items surrounding (heaven forbid the mashed Read Article

Create a BOM That Works for Everyone

Create a BOM That Works for Everyone For me, socks have always been about utility: they keep my feet from getting blisters. Yet for years I have spent far too much time sorting and organizing my socks to match up the colors. Browns with browns, blues with blues, and yellows with… well, to tell the truth, I would just throw those away. Yellow socks were just too weird for me. Then one day I decided to simplify my life and I replaced all my colored socks with plain black socks Read Article

Not That Much Force: Software for Updating PCB Layouts

Not That Much Force: Software for Updating PCB Layouts and Avoiding Redesigns The other night I went to see the new Star Wars movie, “The Last Jedi," and although I really enjoyed the movie I found myself laughing out loud during one sequence. I wasn’t laughing because of the humor of the movie, or a silly looking alien—there were plenty of those to go around already. Instead I was laughing because for one brief sequence they showed some electronic circuitry that appeared to be composed of what looked like thru-hole Read Article